package com.getway.corsConfigure;

import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;

import java.util.List;

/**
 * @Author: sijunqiang
 * @Date: 2020/5/18 14:08
 * @Description: CORE 解决跨域问题
 */
@Data
@Configuration
@ConfigurationProperties("taotao.cors")
public class GlobalCORSConfig {


    private List<String> allowedOrigins;
    private Boolean allowedCredentials;
    private List<String> allowedMethods;
    private List<String> allowedHeaders;
    private Long maxAge;
    private String filterPath;

    /**
     * 解决浏览器跨域的问题
     */
    @Bean
    public CorsFilter corsFilter() {

        //==========1:添加cors配置信息===================
        CorsConfiguration config = new CorsConfiguration();
        // 2：允许的域 不能使用*
        allowedOrigins.forEach(config::addAllowedOrigin);
        //3: 是否发送cookie信息
        config.setAllowCredentials(allowedCredentials);
        // 4: 允许的请求方式
        allowedMethods.forEach(config::addAllowedMethod);
        // 5: 允许的头信息
        allowedHeaders.forEach(config::addAllowedHeader);
        //6: 有效期
        config.setMaxAge(maxAge);


        //=================添加映射路径，拦截一切请求========================
        UrlBasedCorsConfigurationSource configSource=new UrlBasedCorsConfigurationSource();
        configSource.registerCorsConfiguration(filterPath,config);

        // 返回新的coreFilter
        return  new CorsFilter(configSource);

    }

}
